公开(公告)号：EP2515128B1

公开(公告)日：2018-10-10

申请号：EP12163862.1

申请日：2012-04-12

申请人： Hamilton Sundstrand Corporation

发明人： Fattal, Souren G. ,  Sagona, John Duward

IPC分类号： G01R29/18 ,  G01R25/00

CPC分类号： G01R25/00

摘要： A phase detection system includes a low-resolution sensor (200) and a high-resolution sensor (202) for monitoring an alternating current (AC) voltage. A phase detector (204) receives voltage samples from both the low-resolution sensor and the high-resolution sensor. The phase detector monitors the low-resolution sensor to detect approaching zero cross events (i.e., monitored voltage values approaching zero). In response to an approaching zero-cross event, the phase detector uses the magnitude of the high-resolution voltage samples measured on either side of the zero cross event to determine the phase of the monitored AC voltage.

公开(公告)号：EP2116856B1

公开(公告)日：2018-08-15

申请号：EP09100170.1

申请日：2009-03-10

申请人： ROBERT BOSCH GMBH

发明人： Finke, Sven ,  Kuehn, Timo

IPC分类号： G01R19/00 ,  H02M1/00 ,  H02M7/5387 ,  G01R25/00

CPC分类号： G01R19/0092 ,  G01R25/00 ,  H02M7/5387 ,  H02M2001/0009 ,  H02M2007/53876

公开(公告)号：EP1819021B1

公开(公告)日：2018-06-20

申请号：EP06425083.0

申请日：2006-02-14

申请人： Finder S.P.A.

发明人： La Rotonda, Remo

IPC分类号： H02H7/09 ,  H02H3/253 ,  G01R29/16 ,  H02H3/353 ,  G01R29/18 ,  G01R19/25 ,  G01R25/00

CPC分类号： H02H7/09 ,  G01R29/16 ,  H02H3/253

摘要： The method according to the invention, for monitoring and protecting alternating current threephase lines, comprises the following operations: a) finding the course of the three concatenate voltages (Vab, Vac, Vbc) between a phase and another phase; b) determining the three phase-differences (”Õab-ac, ”Õac-bc, ”Õab-bc) between the three pairs (Vab-Vac; Vab-Vbc; Vac-Vbc) of concatenate voltages; c) checking whether at least one of the three phase-differences (”Õab-ac, ”Õac-bc, ”Õab-bc) between the several pairs of concatenate voltages is comprised in its respective admissible phase-difference range. This allows providing protection and monitoring relais able to operate in a very wide range of line voltage rating. The invention also relates to a device arranged for carrying out such method.

公开(公告)号：EP3001524B1

公开(公告)日：2018-01-10

申请号：EP15187143

申请日：2015-09-28

申请人： SCHNEIDER ELECTRIC IND SAS

发明人： DROUERE BERNARD ,  MECREANT JULIEN

IPC分类号： H02H3/16 ,  G01R25/00 ,  G01R31/08 ,  H02H3/38 ,  H02H3/40

CPC分类号： G01R31/08 ,  G01R25/00 ,  H02H3/165 ,  H02H3/385 ,  H02H3/40

公开(公告)号：EP2403131A3

公开(公告)日：2017-05-31

申请号：EP11172154.4

申请日：2011-06-30

申请人： Hitachi Automotive Systems, Ltd.

发明人： Akaishi, Yoshio ,  Noto, Yasuo ,  Yahata, Koichi ,  Matsui, Hirokazu

IPC分类号： H02P21/06 ,  G01R19/00 ,  G01R25/00 ,  H02H3/34

CPC分类号： H02P21/06 ,  H02H7/1227 ,  H02P29/032

摘要： According to the present invention, an electrical power conversion system includes: a motor 1; an inverter circuit 2 that outputs three-phase (U-phase, V-phase, W-phase) alternating currents to the motor 1; a current sensor 3a, 3b, 3c that detects each of the three-phase alternating currents; and a control circuit 100 that controls the inverter circuit 2 based on a torque command value and values detected by the current sensor 3a, 3b, 3c, so that the three-phase alternating currents outputted from the inverter circuit 2 are formed as sine waves; and wherein the control circuit 100 includes: a current component extraction unit 30 that, based on the values detected by the current sensor 3a, 3b, 3c, for each phase, extracts current components superimposed upon each of three-phase alternating currents; and an AC current abnormality detection unit that detects abnormality of an AC current flowing to the motor 1, based on the phases of the current components for any two phases among the three-phase alternating currents.

摘要翻译： 。根据本发明，电功率转换系统，包括：电动机1; 到逆变器电路2个输出的三相做（U相，V相，W相）交流电流给电动机1; 电流传感器3a，图3b，图3c所做的每个三相交流电流的检测; 和控制电路100那样控制逆变器电路2基于由电流传感器3a，图3b，图3c检测出的转矩指令值和值，所以做了三相交流电流从逆变器电路2被形成为正弦波的输出; 和worin控制电路100包括：一个电流分量提取单元30，其基于由电流传感器3A的检测值，3B，3C，对于每个相，提取叠加在每个三相交流电流的电流分量; 和交流电流异常检测单元没有流过电动机1的交流电流的检测异常时，基于所述三相交流电流中的任何两个相的电流分量的相位。

公开(公告)号：EP3098930A1

公开(公告)日：2016-11-30

申请号：EP16171228.6

申请日：2016-05-25

申请人： Delta Electronics, Inc.

发明人： ZHOU, Jian-Hong ,  LU, Cheng ,  ZHANG, Jia-Min ,  WU, Hong-Yang

IPC分类号： H02J3/40 ,  G01R25/00

摘要： A method for detecting an output impedance angle of an inverter includes controlling an inverter to output a second voltage signal and a current signal based on a first voltage signal; receiving the signals, and calculating and outputting first and second active powers, and first and second reactive powers using the signals; calculating and outputting third and fourth active powers, and third and fourth reactive powers based on the first and second active powers, the first and second reactive powers, and the predetermined impedance angle; determining whether the amplitude is a constant value; if so, determining whether an absolute value of the first differential value of the third and fourth reactive powers is less than a first power reference value; if so, the impedance angle outputted from the inverter is the impedance angle; if not, setting the impedance angle as the predetermined impedance angle plus or minus the compensation angle.

摘要翻译： 一种用于逆变器的输出阻抗角的检测方法，包括逆变器的控制，以输出一个第二电压信号，并根据第一电压信号的电流信号的装置; 接收到该信号，并计算和输出廷第一和第二有源功率，以及使用所述信号的第一和第二无功功率; 计算并输出婷第三和第四有功功率，以及基于所述第一和第二有源功率，所述第一和第二无功功率，并且所述预定阻抗角的第三和第四无功功率; 确定性采矿无论幅度是恒定值; 如果是的话，确定是否采的第三和第四无功功率的第一差分值的绝对值小于第一功率参考值; 如果是这样，从逆变器输出的所述阻抗的角度是阻抗角; 如果不是，设置阻抗角作为预定阻抗角加上或减去补偿角。

公开(公告)号：EP3054303A1

公开(公告)日：2016-08-10

申请号：EP15153694.3

申请日：2015-02-03

申请人： ABB S.p.A.

发明人： Ragaini, Enrico ,  Locatelli, Emilio

IPC分类号： G01R25/00 ,  G06F17/14 ,  H02J3/00

CPC分类号： G01R19/2506 ,  G01R21/133 ,  G01R25/00 ,  H02J3/00

摘要： Electrical quantity measuring apparatus (2), comprising: a synchronization module (7) structured to generate a synchronization signal (S1) and a first measurement apparatus (8) connectable to an electrical (1) and structured to receive the synchronization signal and provide: first Fourier transform coefficients representing a first electrical quantity (I(t)) associated with said electrical circuit and a first delay value depending on a time offset between a measurement instant associated with the measure of the first electrical quantity and a reception instant of the synchronization signal (S1) at the first measurement apparatus (8). Moreover, the quantity measuring apparatus comprises a processing module (10) structured to process the first Fourier transform coefficients and the first delay value and provide first time-shifted Fourier transform coefficients representing a first synchronized measured electrical quantity.

摘要翻译： 电量测定装置（2），包括：同步模块（7）构造为产生的同步信号（S1）和第一测量装置（8）连接到在电（1）和结构化，以接收同步信号，并提供： 第一傅立叶变换表示与所述电路和第一延迟值取决于时间与所述第一电量的测量和同步的接收时刻相关联的测量时刻之间的偏移量相关联的第一电学量（I（t））的系数 信号（S1）在所述第一测量装置（8）。 更完了，量测量装置包括构造成处理所述第一傅立叶变换系数和所述第一延迟值，并提供一个处理模块（10），第一时移傅立叶变换系数表示第一同步测量的电量。

公开(公告)号：EP2867991A4

公开(公告)日：2016-04-20

申请号：EP13809475

申请日：2013-06-18

申请人： CREE INC

发明人： ANDRE ULF HAKAN ,  WOOD SIMON MAURICE

IPC分类号： H03H7/38 ,  G01R25/00 ,  H01L23/00 ,  H01L23/66 ,  H01L25/07 ,  H01L25/16 ,  H02M1/42 ,  H03F1/56 ,  H03F3/195 ,  H03F3/21 ,  H03H11/04

CPC分类号： H03H11/04 ,  G01R25/00 ,  H01L23/66 ,  H01L24/00 ,  H01L25/072 ,  H01L25/16 ,  H01L2223/6611 ,  H01L2223/6655 ,  H01L2924/13063 ,  H01L2924/13091 ,  H02M1/4233 ,  H03F1/565 ,  H03F3/195 ,  H03F3/211 ,  H03H7/38 ,  Y02B70/126 ,  H01L2924/00

摘要： A packaged RF transistor device includes: an RF transistor die including a plurality of RF transistor cells; an RF input lead coupled to the plurality of RF transistor cells; an RF output lead; and an output matching network coupled between the plurality of RF transistor cells and the RF output lead. The output matching network includes a plurality of capacitors having respective upper capacitor plates, wherein the upper capacitor plates of the capacitors are coupled to output terminals of respective ones of the RF transistor cells. The plurality of capacitors may be provided as a capacitor block that includes a common reference capacitor plate and a dielectric layer on the reference capacitor plate. The upper capacitor plates may be on the dielectric layer.

公开(公告)号：EP2871494A1

公开(公告)日：2015-05-13

申请号：EP13192175.1

申请日：2013-11-08

申请人： U-blox AG

发明人： Gough, Andrew

IPC分类号： G01S19/03 ,  G01R25/00

CPC分类号： H04B1/7073 ,  G01S19/35 ,  H03K5/26

摘要： There is proposed a method and system for determining a phase-alignment between first and second clock signals of differing frequency. The method comprise: sampling a value of the first clock signal at instants defined by an edge of the second clock signal; defining a sequence of samples of the first clock signal that are separated by N cycles of the second clock signal, where N is an integer greater than 1; and detecting the occurrence of a predetermined pattern of values in the defined sequence.

摘要翻译： 提出了一种用于确定不同频率的第一和第二时钟信号之间的相位对准的方法和系统。 该方法包括：在由第二时钟信号的边缘定义的时刻对第一时钟信号的值进行采样; 定义第一时钟信号的采样序列，其被第二时钟信号的N个周期分隔，其中N是大于1的整数; 并以规定的顺序检测预定的值图案的出现。

公开(公告)号：EP2863508A1

公开(公告)日：2015-04-22

申请号：EP13806236.9

申请日：2013-06-06

申请人： Midea Group Co., Ltd. ,  GUANGDONG MIDEA KITCHEN APPLIANCES MANUFACTURING CO., LTD.

发明人： HUANG, Bin ,  ZHENG, Nianzhong ,  CHEN, Xingchao

IPC分类号： H02H7/10 ,  G01R19/165 ,  G01R25/00

CPC分类号： G01R19/165 ,  G01R25/00 ,  H03K17/0828 ,  H03K17/13 ,  H05B6/666

摘要： A protective circuit for a high frequency heating device and a high frequency heating device having same, the protective circuit for a high frequency heating device comprising: an input winding (1), a sampling winding (2), a phase comparison module (3), a voltage comparison module (4), and a controller (5); the input winding (1) is connected to the switching device of the high frequency heating device; the sampling winding (2) is disposed relative to the input winding (1) and is used to sample a voltage signal on the switching device; the phase comparison module (3) and the voltage comparison module (4) are respectively connected to the sampling winding (2); the phase comparison module (3) outputs a first comparison signal according to a voltage phase signal in the voltage signals; the voltage comparison module (4) outputs a second comparison signal according to the comparison between the voltage amplitude of the voltage signal and a preset reference voltage; the controller (5) controls the switching device to synchronously switch on and off according to the first comparison signal, and protects the switching device according to the second comparison signal. The protective circuit for a high frequency heating device improves the circuit reliability of the high frequency heating device, and reduces accumulated error caused by a plurality of resistors connected in series, thus saving cost.

摘要翻译： 一种高频加热装置的保护电路及具有该保护电路的高频加热装置，其特征在于，包括：输入绕组（1），取样绕组（2），相位比较模块（3） ，电压比较模块（4）和控制器（5）; 输入绕组（1）连接到高频加热装置的开关装置; 采样绕组（2）相对于输入绕组（1）布置，用于对开关装置上的电压信号进行采样; 相位比较模块（3）和电压比较模块（4）分别连接到采样绕组（2）; 相位比较模块（3）根据电压信号中的电压相位信号输出第一比较信号; 电压比较模块（4）根据电压信号的电压幅度与预设参考电压之间的比较输出第二比较信号; 控制器（5）根据第一比较信号控制开关装置同步接通和断开，并根据第二比较信号保护开关装置。 高频加热装置的保护电路提高了高频加热装置的电路可靠性，并且减少了串联连接的多个电阻器引起的累积误差，从而节约了成本。